Improved usability of plugin upgrades by combining sidebar and event plugins and upgrading multiple plugins at once

Permission checks for the dashboard output and comments

Usability improvements to the media library, bulk moving support

The full list of changes can be found as usual in our docs/NEWS file.

We are happy to hear your feedback about this beta release on our forums!

Thanks on behalf of the team. And also thanks for our hard-working developers who contributed code to this Serendipity beta version, especially aristophian, onli, yellowled (in alphabetical order *g*),